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Journal of materials Science & Technology 2022年第35期130卷 219-226页

作者： Yuzhen Wang Xuanyi Yuan Yongge Cao chaoyang ma Songshan Lake materials Laboratory Dongguan 523808China Department of Physics Renmin University of ChinaBeijing 100872China Beijing National Laboratory for Condensed matter Physics and Institute of Physics Chinese Academy of SciencesBeijing 100190China

With the rapid development of science and technology,the high-security-level anti-counterfeiting technique is essential for ensuring property or information *** this work,we prepared micron NaYTiO_(4):Bi/Er(NYT:Bi/Er) phosphors with integrating up-conversion(UC) photoluminescence,downshifting(DS) emission,phosphorescence and photochromism(PC) performances for advanced multiple anti-counterfeiting *** to the abundant energy levels of Er^(3+)ions,the UC and DS luminescence behaviors are ***,the yellow-green emission of Er^(3+)ions can be observed upon 980 nm excitation,and the bright green emission is demonstrated under 281 or 254 nm excitation due to the energy transitions of Er^(3+)ions and the energy transfer process from Bi^(3+)to Er^(3+)***,the introduction of Bi^(3+)ions generates defect levels in the matrix and thus leads to ***,the repeatable PC performance could be triggered by the 365 nm irradiation and vanished with 450 nm illumination or thermal *** verify the practical usability of NYT:Bi/Er phosphors on anti-counterfeiting applications,some experiments are designed and successfully *** is believed that the NYT:Bi/Er phosphors can be a promising candidate for high-security-level multiple anti-counterfeiting.

关键词： Anti-counterfeiting Up-conversion Down shifting Phosphorescence Photochromism NaYTiO4 Bi/Er

Acupoint combinations used for treatment of Alzheimer's disease: A data mining analysis

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Journal of Traditional Chinese Medicine 2018年第6期38卷 943-952页

作者： Yu Chaochao Wang Li Kong Lihong Shen Feng ma chaoyang Du Yanjun Zhou Hua College of Acupuncture and Orthopedics Hubei University of Chinese MedicineWuhan 430061China Hubei Provincial Collaborative Innovation Center of Preventive Treatment by Acupuncture and Moxibustion Wuhan 430061China Department of Rehabilitation Wuhan Central Hospital Affiliated to Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430014China

OBJECTIVE: To identify the acupoint combinations used in the treatment of Alzheimer's disease(AD).METHODS: The clinical literature regarding acupuncture and moxibustion for AD was searched and collected from databases including Chinese Biomedical Medicine, China National Knowledge Infrastructure, Wanfang Database and PubMed. The database of acupuncture and moxibustion prescriptions for AD was established by using Excel software so as to conduct the descriptive analysis, association analysis on the ***: Baihui(GV 20), Sishencong(EX-HN 1),Shenmen(HT 7), Zusanli(ST 36), Neiguan(PC 6),Fengchi(GB 20), Taixi(KI 3), Dazhui(GV 14), Shenshu(BL 23), Sanyinjiao(SP 6), Shenting(GV 24), Fenglong(ST 40), Xuanzhong(GB 39), Shuigou(GV 26)and Taichong(LR 3) were of higher frequency in the treatment of AD with acupnucture and moxibustion. Most acupoints were selected from the Governor Vessel. The commonly used acupoints were located on the head, face, neck and lower limbs. The combination of the local acupoints with the distal ones was predominated. The crossing points among the specific points presented the advantage in the treatment. The association analysis indicated that the correlation among Fengchi(GB 20)-Baihui(GV 20) was the strongest, followed by combinations of Dazhui(GV 14)-Baihui(GV 20), Shenshu(BL 23)-Baihui(GV 20) and Neiguan(PC 6)-Baihui(GV 20) and indicated the common rules of the clinical acupoint selection and combination for ***: Our findings provide a reference for acupoints selection and combination for AD in clinical acupuncture practice.

关键词： Alzheimer disease Acupuncture points Clinical application Data mining

Large transverse thermoelectric figure of merit in a topological Dirac semimetal

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Science China(Physics,Mechanics & Astronomy) 2020年第3期63卷 82-88页

作者： JunSen Xiang SiLe Hu Meng Lyu WenLiang Zhu chaoyang ma ZiYu Chen Frank Steglich GenFu Chen PeiJie Sun Beijing National Laboratory for Condensed matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Department of Physics Key Laboratory of Micro-Nano Measurement-Manipulation and PhysicsBeihang UniversityBeijing 100191China University of Chinese Academy of Sciences Beijing 100049China max Planck Institute for Chemical Physics of Solids Dresden 01187Germany Songshan Lake materials Laboratory Dongguan 523808China

The Seebeck effect encounters a few fundamental constraints hindering its thermoelectric(TE)conversion *** notably,there are the charge compensation of electrons and holes that diminishes this effect,and the Wiedemann-Franz(WF)law that makes independent optimization of the corresponding electrical and thermal conductivities ***,we demonstrate that in the topological Dirac semimetal Cd3As2 the Nernst effect,i.e.,the transverse counterpart of the Seebeck effect,can generate a large TE figure of merit *** room temperature,zNT≈0.5 in a small field of 2 T and it significantly surmounts its longitudinal counterpart for any field.A large Nernst effect is generically expected in topological semimetals,benefiting from both the bipolar transport of compensated electrons and holes and their high *** this case,heat and charge transport are orthogonal,i.e.,not intertwined by the WF law *** importantly,further optimization of zNT by tuning the Fermi level to the Dirac node can be anticipated due to not only the enhanced bipolar transport,but also the anomalous Nernst effect arising from a pronounced Berry curvature.A combination of the topologically trivial and nontrivial advantages promises to open a new avenue towards high-efficient transverse thermoelectricity.

关键词： Dirac semimetal Cd3As2 Nernst effect transverse thermoelectricity

Different processing methods and pharmacological effects of Atractylodis Rhizoma

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Chinese Journal of Natural Medicines 2024年第8期22卷 756-768页

作者： GUO Dongmei XU Kang WAN Qianyun YU Songyang ma chaoyang ZHANG Baohui LIU Yanju QU Linghang College of Pharmacy Hubei University of Chinese MedicineWuhan 430065China Center for Hubei TCM Processing Technology Engineering Wuhan 430065China Hubei Shizhen Laboratory Wuhan 430065China

Atractylodis Rhizoma,a traditional Chinese medicine with an extensive history of treating gastrointestinal disorders and other diseases,undergoes various processing methods in China to enhance its therapeutic efficacy for specific ***,a comprehensive report detailing the changes in chemical composition and pharmacological effects due to these processing methods is currently *** article provides a systematic review of the commonly employed processing techniques for Atractylodis Rhizoma,including raw Atractylodis Rhizoma(SCZ),bran-fried Atractylodis Rhizoma(FCZ),deep-fried Atractylodis Rhizoma(JCZ),and rice water-processed Atractylodis Rhizoma(MCZ).It examines the alterations in chemical constituents and pharmacological activities resulting from these processes and elucidates the mechanisms of action of the primary components in the various processed forms of Atractylodis Rhizoma in the treatment of gastrointestinal diseases.

关键词： Atractylodis Rhizoma Processing method Pharmacological effect Change in chemical composition Gastrointestinal disease

Superconductivity at the Normal Metal/Dirac Semimetal Cd3As2 Interface

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Chinese Physics Letters 2020年第7期37卷 107-110页

作者： Shuai Zhang Yiyan Wang chaoyang ma Wenliang Zhu Zhian Ren Lei Shan Genfu Chen Institute of Physics and Beijing National Laboratory for Condensed matter Physics Chinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Songshan Lake materials Laboratory Dongguan 523808China Key Laboratory of Structure and Functional Regulation of Hybrid materials of Ministry of Education Institutes of Physical Science and Information TechnologyAnhui UniversityHefei 230601China

We investigate the interface between a three-dimensional Dirac semimetal Cd3As2 and a normal metal via softpoint contact spectroscopy *** superconducting gap features were detected below 3.8 K and 7.1 K in the case of Cd3As2 single crystals sputter-coated with the Pt and Au films,respectively,in the differential conductance dI/dV-V plots of the point *** the applied magnetic field increased,the drop in the zerobias contact resistance shifted toward lower *** topologically non-trivial band structure of Cd3As2 is considered to play a crucial role in inducing the *** from realizing superconductivity in topological materials,our creative approach can be used to investigate possible topological superconductivity and exhibits a high application potential in electronic devices.

关键词： Superconductivity superconductivity topological

magnetotransport Properties of a Nodal Line Semimetal TiSi

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Chinese Physics Letters 2018年第11期35卷 66-69页

作者： Moran Gao Junbao He Wenliang Zhu Shuai Zhang Xinmin Wang Jing Li chaoyang ma Hui Liang Zhian Ren Genfu Chen Institute of Physics aud Beijing National Laboratory for Condensed matter Physics Chinese Academy of Sciences Beijing 100190 School of Physical Sciences University of Chinese Academy of SciencesBeijiug 100049 College of Physics and Electronic Engineering Nanyang Normal UniversityNanyang 473061 Collaborative Innovation Center of Quantum matter Beijing 100190

We report the magnetoresistance（MR）, de Haas-van Alphen（dHvA） effect and Hall effect measurements on a single crystal of TiSi, which is predicted to be a nodal line semimetal. With application of a magnetic field, a metal-to-insulator-like transition in ρ（T） and a nonsaturating MR are observed at low temperatures. The dHvA oscillations reveal a small Fermi-surface pocket with a nontrivial Berry phase. The analysis of the nonlinear Hall resistivity shows that TiSi is a multiband system with low carrier densities and high mobilities. All these results unambiguously prove the existence of Dirac fermions in TiSi.

关键词： magnetotransport Properties of a Nodal Line Semimetal TiSi MR

Effects of Acupuncture on Alzheimer's Disease:Evidence from Neuroimaging Studies

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Effects of Acupuncture on Alzheimer's Disease:Evidence from ...

新时代新思维新跨越新发展——2019中国针灸学会年会暨40周年回顾

作者： YU Chaochao ma chaoyang KONG Lihong SHEN Feng Hubei University of Chinese Medicine Department of Rehabilitation Wuhan Central Hospital Affiliated to Tongji Medical CollegeHuazhong University of Science and Technology Hubei Provincial Collaborative Innovation Center of Preventive Treatment by Acupuncture and Moxibustion Hubei University Chinese Medicine

As the worldwide population ages, the prevalence of Alzheimer’s disease(AD)increases. However, of the results of promising medications have been unsatisfactory. Chinese acupuncture has a long history of treating dementia, but lack of evidence from well-designed randomized controlled trials that validate its efficacy and safety, as well as its lack of clear underlying mechanisms, contribute to its limited application in clinical practice. In recent years,brain imaging technologies, such as functional magnetic resonance imaging and positron emission tomography, have been used to assess brain responses to acupuncture in a dynamic,visual, and objective way. These techniques are frequently used to explore neurological mechanisms of responses to acupuncture in AD and provide neuroimaging evidence as well as starting points to elucidate possible mechanisms. This review summarizes the existing brain imaging evidence that explains the effects of acupuncture for AD and analyzes brain responses to acupuncture at cognitive-related acupoints [Baihui(GV 20), Shenmen(HT 7), Zusanli(ST 36),Neiguan(PC 6), and Taixi(KI 3)] from perspectives of acupoint specificity and acupoint combinations. Key issues and directions to consider in future studies are also put forward. This review should deepen our understanding of how brain imaging studies can be used to explore the underlying mechanisms of acupuncture in AD.

关键词： acupuncture Alzheimer’s disease brain response acupoint specificity neuroimaging

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企业人力资源优化配置的关键要素分析

中国人力资源开发 2009年第3期26卷 14-16页

作者：张星马朝阳西北工业大学

企业人力资源优化配置是研究企业如何合理运用人力资源以达到企业最终目的的问题。传统的人力资源优化配置的研究中大多是从管理学的角度,以企业组织结构变化、外部环境变化、企业战略以及与企业文化的匹配程度为关键要素进行研究。本... 详细信息

企业人力资源优化配置是研究企业如何合理运用人力资源以达到企业最终目的的问题。传统的人力资源优化配置的研究中大多是从管理学的角度,以企业组织结构变化、外部环境变化、企业战略以及与企业文化的匹配程度为关键要素进行研究。本文则从经济学和管理学相结合的角度,通过问卷调查并利用因子分析对人力资源优化配置的关键影响要素进行分析并构建了系统的研究模型。

关键词：人力资源优化配置关键要素

基于自适应通信拓扑四旋翼无人机编队重构控制

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北京航空航天大学学报 2018年第4期44卷 841-850页

作者：马思迁董朝阳马鸣宇王青北京航空航天大学航空科学与工程学院北京100083 北京航空航天大学自动化科学与电气工程学院北京100083

针对四旋翼无人机编队重构协同控制问题,基于切换通信拓扑结构的积分滑模控制(ISMC)方法进行了研究。根据四旋翼无人机间的通信拓扑关系以及编队重构特性,建立了四旋翼无人机编队模型。针对编队重构过程中可能出现的通信可靠性问题,提... 详细信息

针对四旋翼无人机编队重构协同控制问题,基于切换通信拓扑结构的积分滑模控制(ISMC)方法进行了研究。根据四旋翼无人机间的通信拓扑关系以及编队重构特性,建立了四旋翼无人机编队模型。针对编队重构过程中可能出现的通信可靠性问题,提出了通信拓扑切换条件,结合积分滑模控制理论对切换通信拓扑条件下的协同控制器进行设计,并结合切换系统理论对编队系统稳定性进行了证明。仿真结果表明,无人机编队系统在编队重构过程中采用切换通信拓扑结构以及滑模控制方法能保证系统的稳定性,验证了方法的有效性。

关键词：飞行编队控制有向拓扑自适应切换系统积分滑模四旋翼无人机

射频等离子体法制备球形化TC4(Ti6Al4V)合金粉末（英文）

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稀有金属材料与工程 2019年第2期48卷 446-451页

作者：赵翀麻朝阳文子诚曹永革马冉袁轩一中国人民大学光电功能材料与微纳器件北京市重点实验室北京100872

采用射频等离子体法制备了高度球形化的TC4(Ti6Al4V)合金粉末。主要探究仪器送粉喷嘴高度、产生等离子体的功率、反应室的压力、原料粉体的粒度分布、送粉速率以及载气的气流速率等对于粉体球化率的影响。通过SEM图像观察粉体的形貌变... 详细信息

采用射频等离子体法制备了高度球形化的TC4(Ti6Al4V)合金粉末。主要探究仪器送粉喷嘴高度、产生等离子体的功率、反应室的压力、原料粉体的粒度分布、送粉速率以及载气的气流速率等对于粉体球化率的影响。通过SEM图像观察粉体的形貌变化并计算粉体的球化率,利用XRD图谱测定球化前后粉体相结构。结果表明,通过观察球化粉末横截面可知粉末为实心球体且表面光滑,球化后粉末流动性明显提高,松装密度增大,粒度分布变窄,适合3D打印等应用技术对于合金粉体的要求。实验中,调节送粉喷嘴高度为12.5 cm,反应室压力为101.36 kPa,送粉速率为1.742 g/min,产生等离子气的功率为27.2 kW且控制原料粉体的粒度分布在38～63μm时,可使得球化率达到99%,明显高于其他球化粉末制备方法。

关键词：球化 Ti6Al4V分粉体射频等离子体